The statuses of channels, including Activated, Disabled, Fault,
RAI Alarm, AIS Alarm, ISDN/SS7 Signal Alarm, Frame-Sync,
Idle, Signal, Busy, L-block, R-blocked, B-blocked, Blocking,
Unblocking and Resetting.
Meanwhile, you can carry out maintenance on the channels of E1/T1 ports through the
following buttons:
Select All, Invert, Clear, Block, Unblock, Reset and Cancel.